Former Nokia CEO Stephen Elop has been relieved of his position as executive vice president of Microsoft’s Devices Group and Terry Myerson will take the lead on the company’s software and hardware efforts.

Microsoft CEO Satie de Triana continues his cycle of change in the company announced a major shake-up of senior leadership today.

Nadella told employees in an email: “We are adjusting our engineering efforts and ability to implement our strategies, particularly our three core ambitions. This change will allow us to provide better products and services that our customers love, at a much responsive rate.”

The biggest change is Elop’s departure, “after the specified transition period”. He had spearheaded the firm’s Lumia devices , since Microsoft’s acquisition of Nokia’s mobile phone business last year.